Little help with debugging?

I've got a rendering bug that I cannot duplicate with an easy test case so I'm trying to debug it.

The issue is a grid with 2 columns.

standard column with flex of 1

action column with width of 20

The column headers display correctly, but the width of the first (flex) column on all of the data rows is 0. (Actually the element is set to style="width: px".)

I've narrowed it down to when getColumnsForTpl is called for the chunker, header.getDesiredWidth () return "undefined" because width is not set:

Code:

else if (me.flex) {
return me.width;
}

I've looked all over the box layout trying to figure out where this should be set and can't find it for the life of me. Can one of the developers point me to where this is supposed to be set so I can figure out why it is not?

I've been using 20px columns for quite a while and they work elsewhere in the same system. I also don't see anything about a min width in the doc or column source, other than being able to set one for column re-sizing.

A min width of 40 doesn't make much sense with action columns which are typically 16x16 images.

Surly someone at Sencha knows where the width of a flex column is set in the new layout stuff?